<%--
  Created by IntelliJ IDEA.
  User: 范军建
  Date: 2022/3/28
  Time: 18:48
  To change this template use File | Settings | File Templates.
--%>
<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<%
    Object ob = request.getAttribute("num1");
    String su="";
    if (ob !=null){
        su= (String) ob;
    }
%>
<%=su%>
</body>
</html>
